16 rv. Pisces für 1906. 



spurt such as is required to lift the fish over an oncoming wave. 4. Either 

 sudden cessation of wing-movement and consequent immediate drop 

 into the sea or a short slow down into visibiHty (No. 3) previous to 

 such drop." 



Eastmau, C. R. (I). Structure and relations of Mylostoma. In: 

 Bull. Mus. Comp. Zool. Harvard Coli. 50. (11+ 1—30 +41, mit 

 5 Taf.). — Ref. in: J. R. Micr. Soc. 1906 p. 432; von 0. Grosser in: 

 Zoolog. Jahresber. 1906, Vert. p. 116. 



— (3). Dipnoan affinities of arthrodires. In: Amer. Journ. Sei. 

 (4.) 21. p. 131—143. — Ref. in: Journ. R. Micr. Soc. 1906. p. 293. 



— (3). Sharks teeth and cetacean bones. In: Reports on the 

 Scientific Results of the Expedition to the eastern tropical pacific, 

 in Charge of Alexander Agassiz. In: Bull. Mus. Comp. zool. Harvard 

 Coli. 50. p. 73—98. 4 Taff. 



Zähne von Lamnidae u. Carchariidae wurden überall im Pacifisch. 

 Ozean gefunden, sie sind aber in den südlichen tropischen Regionen 

 am zahlreichsten. — Elasmobranchii (Taf. II) p. 82 — 3 (Oxyrhina 

 crassa, Carcharodon megalodon und C. lanciformis). 



Edinger, L. (1). Über das Gehirn von Myxine glutinosa. In: Abh. 

 d. Ak. d. Wiss. Berlin 1906, Anhang p. 1—36, 3 Taff. — Ref. v. R. Gast 

 in: Zoolog. Jahres. 1906, Vert. p. 156. 



— (3). Einiges vom Gehirn des Amphioxus. In: Anat. Anz. 28. 

 p. 417— 28. 15 Figg. — Ref. in: Journ. R. Micr. Soc. 1906. p. 426. 



— (3). A preliminary note on the comparative anatomy of the 

 Cerebellum. In: Brain, XXIX. p. 483— 6. 1 Fig. 



Vorläufige Mitteilung. 



,,The degree to which the cerebellum is differently developed 



varies directly according to equilibratory needs All animals 



possessing a cerebellum exhibit a perfectly typical cortex and all have 

 lateral intrinsic nuclei ... In the lower Vertebrates there is only one 

 peduncle, from which tracts brauch off frontally and caudally." 

 Verf. unterscheidet nun: A. Afferent Tracts und B. Efferent Tracts, 

 unter den letzteren wiederum: a) Tractus cerebello-tegmentahs-bulbi, 

 b) Tr. c.-t. spinalis, c) T. c. -t. mesencephah, d) Tr. c.-t. diencephali. 



Eigenmann, C. H. The fresh-water fishes of South and Middle 

 America. In: Pop. Sei. Monthly (New York). 68. p. 515—30. 



Emeljanenko, P. E. Der scheibenförmige Barsch, Mesogonistius 

 chaetodon. [Russisch]. In: Naturfreund (St. Petersburg) I. p. 35 — 8. 



Engel, C. S. Über kernlose Blutkörperchen bei niederen Wirbel- 

 tieren. In: Anat. Anz. 29. p. 144 — 7. 



fEtheridge, R. (I). The cranial buckler of a Dipnoan fish probably 

 Ganorhynchus from the Devonian beds of the Murrumbidgee River, 

 New South Wales. In: Rec. Austral. Museum 6. p. 129—132. Taf. 28. 



•f — (2). Description of the rautilated cranium of a large fish 

 from the Lower Cretaceous of Queensland. In: Rec. Austral. Mus. VI. 

 p. 5—8. Taf. I— II. 



Ichthyodectes marathonensis n. sp. 



1 



